ASTM A36 Bolt An Overview ASTM A36 bolt is a widely used carbon steel bolt that offers excellent strength and durability. It is commonly used in various applications, including construction, machinery, and transportation industries, due to its high strength-to-weight ratio and cost-effectiveness. One of the key features of ASTM A36 bolt is its chemical composition. The bolt is made of carbon steel with a minimum yield strength of 36,000 PSI (pounds per square inch). This makes it ideal for applications where high strength is required. In addition to carbon, the bolt may also contain other elements such as manganese, phosphorus, sulfur, and silicon, which help improve its mechanical properties. Another important aspect of ASTM A36 bolt is its mechanical properties. The bolt has a low carbon content, which makes it less prone to brittleness and cracking. It also has a high toughness, which means it can withstand impact and shock loads without breaking. Additionally, the bolt has a good fatigue resistance, which allows it to withstand repeated loading and unloading without failing. ASTM A36 bolt is available in various sizes and lengths, ranging from M4 to M64. The size of the bolt is determined by its diameter and thread pitch The size of the bolt is determined by its diameter and thread pitch The size of the bolt is determined by its diameter and thread pitch The size of the bolt is determined by its diameter and thread pitchastm a36 bolt. The thread pitch refers to the distance between two threads on the bolt, and it affects the tightness of the bolt. Thicker bolts have a higher thread pitch, which makes them stronger but also more difficult to tighten. The surface finish of ASTM A36 bolt is another important consideration. The bolt can be either hot-dipped galvanized or painted to protect it from corrosion. Hot-dipped galvanizing involves dipping the bolt in molten zinc, which forms a protective layer on the surface. Painting involves coating the bolt with a layer of paint to prevent rusting. In conclusion, ASTM A36 bolt is a versatile and reliable fastener that offers excellent strength and durability. Its high strength-to-weight ratio, low carbon content, and good fatigue resistance make it suitable for a wide range of applications. Whether you are working on a construction project or installing machinery, ASTM A36 bolt is an excellent choice.